What can your solar system do to cut your TNB bill, store extra sunlight for later, and keep your house operating when the clouds come? The answer is net energy metering.
So, what’s the deal? Imagine your solar panels quietly soaking up the sun’s rays while you’re at work and your kids are at school. You don’t need a lot of electricity right now, yet it all turns into it. The NEM program makes sure that additional power isn’t wasted. Instead, it goes back to Tenaga Nasional Berhad (TNB), and you get credit for every kilowatt-hour you don’t use.
The magic happens with a bidirectional meter. This device keeps track of what comes in from the grid and what your panels send back out. When the sun goes down or clouds come in and your panels can’t keep up, TNB automatically gives you power. At the end of each month, the scores are summed up to see how much you sent back and how much you used from the grid.
It’s easy math, but it’s also sophisticated. You get a credit for every unit you export, which is a bit like rolling over unused phone data. This makes your debt to TNB smaller. In the newest versions of Malaysia’s NEM, credits roll over to the next month. This is helpful when solar harvests are low. You should check the most recent SEDA (Sustainable Energy Development Authority) requirements, though, because they can change and credits don’t last forever.
For instance, Mrs. Teoh in Bukit Mertajam put up a 4kW system and occasionally sends more than a third of her energy back to the grid when it’s hot and dry. How much does she pay each month? She smiles all through the monsoon since she has money from sunny days that she can use to buy goods.
It doesn’t take much work to get net energy metering, but you do need to fill out certain forms. Your installer will fill out forms on the SEDA site and get them approved. You will also need to get a new meter that is ready for NEM to replace your old one. The hard work at the start pays off, though; saving money each month can make a great impact.
Net energy metering turns conventional roofs into small power plants. Just use what you need, share what you don’t, and watch your TNB bills go down. It’s a win-win arrangement that makes sunny days a little more interesting and gives homeowners a reason to smile when the weather is nice.